128661572 is an even 9-digits composite number following 128661571
and preceding 128661573 . In scientific notation, it is written as 1.28661572 × 10^8.
The sum of its digits is 38. It has a total of 4 prime factors and 12 positive divisors.
There are 59382240 positive integers (up to 128661572) that are relatively prime to 128661572.
128661572 has 12 divisors, whose sum is 242477676
The reverse of 128661572 is 275166821
Previous prime number is 13
Is Prime? no
Number parity even
Number length 9
Sum of Digits 38
Digital Root 2
Name
one hundred twenty-eight million six hundred sixty-one thousand five hundred seventy-two
Scientific notation
1.28661572 × 10^8
Engineering notation
1.28661572 × 10^6
Prime Factorization
2 × 2 × 13 × 2474261
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
64330786
Product of the distinct prime numbers
The prime factorization of 128661572 is 2 × 2 × 13 × 2474261.
Since it has a total of 4 prime factors.
8 , 9 , 25 , 40 , 230 , 291 , 7983 , 9076 , 53834 , 10423 , 915417 , 537936 , 4050057 , 9497022 , 54761111 , 14794760 , 448063639 , 294422842 , 946933661 , 2572883396
n×2
257323144
n×3
385984716
n×4
514646288
n×5
643307860
n÷2
64330786
n÷3
42887190.666667
n÷3
32165393
n÷5
25732314.4
n2
16553800109511184
n3
2.1298379446635E+24
n4
2.7402829806565E+32
n5
3.5256911601611E+40
2 √n
11342.908445368
3 √n
504.83518720667
4 √n
106.50309124794
5 √n
41.868728360142
1 , 2 , 4 , 13 , 26 , 52 , 2474261 , 4948522 , 9897044 , 32165393 , 64330786 , 128661572
12 divisors
τ
Total Divisors
12
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-128661571
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.083333333333333
Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G
Geometric Mean
1
Returns the nth root of the product of n divisors
H
Harmonic Mean
12
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 128661572 can be divided by 12 positive divisors.
The sum of these divisors (counting 128661572) is 1, the average is 0.083333333333333.
Base
System
Value
2
Binary
111101010110011100001000100
3
Ternary
22222002200111102
4
Quaternary
13222303201010
5
Quinary
230414132242
6
Senary
20433355232
8
Octal
752634104
10
Decimal
128661572
12
Duodecimal
37108b18
16
Hexadecimal
7ab3844
20
Vigesimal
2042dic
36
Base36
24lnwk
md5
563c3ef35977ac1071f5f68b4760e89c
sha1
f84907a22c0a4c0b699cbca14d9f67968f2d0e09
sha256
64ef042829008888bda78fc77b410c3b205c720d7569ba7bdbecf69d0f9ec265
sha512
11e72f91cdb5fc5dff0af079660a55b47a02f0c121e4ae7bc9cf9df26ff1ccc3d4b65584323892e3950efae316310b8cfb0b5008dc521369677b3f5eabd391ea
ripemd-160
b7a7d3c2adf321ea2a06a53ffb7ec43c1c880d00
Diameter
257323144
Circumference
808404498.78903
Area
5.2005296813034E+16
Volume
8.9214443203888E+24
Surface area
2.0802118725214E+17
Circumference
808404498.78903
Perimeter
514646288
Area
16553800109511184
Diagonal
181954940.07864
Surface area
99322800657067104
Volume
2.1298379446635E+24
Space diagonal
222848379.68568
Perimeter
385984716
Area
7.1680057120032E+15
Altitude
111424189.84284
Surface area
7.1680057120032E+15
Volume
2.5100380891666E+23
Height
60651646.692881